Pith Number

pith:6JBE3CHD

pith:2025:6JBE3CHDH3AOEC4QYBIHCCFMD5

not attested not anchored not stored refs pending

CLOUD: A Scalable and Physics-Informed Foundation Model for Crystal Representation Learning

Changwen Xu, Shang Zhu, Venkatasubramanian Viswanathan

arxiv:2506.17345 v1 · 2025-06-19 · cond-mat.mtrl-sci · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6JBE3CHDH3AOEC4QYBIHCCFMD5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T11:25:16.289873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2424d88e33ec0e20b90c0507108ac1f45236a67a80a8c85fdd95e749d921380

Aliases

arxiv: 2506.17345 · arxiv_version: 2506.17345v1 · doi: 10.48550/arxiv.2506.17345 · pith_short_12: 6JBE3CHDH3AO · pith_short_16: 6JBE3CHDH3AOEC4Q · pith_short_8: 6JBE3CHD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6JBE3CHDH3AOEC4QYBIHCCFMD5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f2424d88e33ec0e20b90c0507108ac1f45236a67a80a8c85fdd95e749d921380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4d1c35a5c6706c90af8bfb7a486ef9db7a47ff361296bfa23b32779134f413",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2025-06-19T15:45:24Z",
    "title_canon_sha256": "7c077633f6c7950af8d446d17f1bcd250fa77c412a55cd4a17e5c6f1d6d89966"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.17345",
    "kind": "arxiv",
    "version": 1
  }
}